Brush



' Feb. 7, 1939. H. CAVE 4BRUSH Filed Jan. 2. 1935 ,4T AP/VEY PatentedFeb. 7, 1939 UNITED STATES PATENT OFFICE BRUSH Application January 2,1935, Serial No. 81

11 Claims.

My invention relates to the class of devices above named, and an objectof my invention, among others, is the production of a brush which issimple inconstruction, durable, and one which is particularly e'icientin operation; and a further object of my invention is the production ofa brush of this type having brush elements which may be readily removedand replaced.

One form of a brush embodying my invention andAin the construction anduse of which the objects herein set out, as well as others, may beattained -is illustrated in the accompanying drawing in which Figure 1is an edge view of my improved brush.

Figure 2 is a side view with parts broken away to show construction.`

Figure 3 is a view on enlarged scale of a fragment of my improved brushillustrating the con-A struction thereof.

Figure 4 is a similar view illustrating another means for securing thebrush elements together.

Figure 5 is a view in section on a plane denoted by the dotted line 5-5of Fig. 3.

Figure 6 is a view of a fragment of a brush illustrating still anotherWay for securing the brush elements in place.

My invention is not limited to a brush having a body of any particulartype for supporting bristles or other brush material, but as it isreadily adapted to a structure in which the body for supporting the basefor the bristles or other brush material is a.rotary object, as a wheel,such a structure has been selected by me for the purpose of illustratingmy invention herein. However, this is not to be taken into considerationwhen determining the scope of the invention except where said inventionis definitely limited by the claims herein, as it will be apparent thatthe round supporting surface of the Wheel may be readily developed intoa flat or other shaped surface for supporting the bristles or brushmaterial. Therefore, wherever a term especially applicable to a wheel isused herein it may be considered as equally applicable to a body of anyother shape for the purpose in hand.

In the accompanying drawing the numeral I0 I denotes the body of myimproved brush which in the particular form herein shown is embodied ina wheel having a central hole II for the reception of a spindle or shaftby means of which the brush may be rotated. 'Ihe rim I2 of this wheel iscylindrical in form, its outer surface being such that bases I3 of brushelements may be set squarely upon such cylindrical surface to 4besecured thereto.

These bases are preferably composed of metal,

the outer surfaces of the bottoms thereof being preferably straight fromend to end, and they may be slightly curved crosswise to correspond tothe curve of the outer surface of the rim I2. Said bases are of troughshape having grooves extending preferably from end to end and they maybe formed from sheet metal bent to shape to create the bottoms I4 andsides I5. These sides are slightly curved outwardly at their outer edgesto form lips I6, and they converge from the bottoms outwardly to formchannels which are wider at the bottoms than at the mouths. Said sidesare flat as to their outer surfaces to receive the flat edges of cleatsI1. cleats are tapered to t the flat sides of the bases of the brushelements so that the latter may be secured firmly in place withoutlooseness and therefore without danger of movement relatively to the rimI2. The cleats Il may be secured to the rim in any suitable manner,screws I8 being shown herein as an effective means for accomplishingthis purpose, the screws passing through holes in the cleats and beingthreaded into the rim as clearly shown in Fig. 3 of the drawing.

The brush material I9 may consist of fibers or bristles of any desiredkind suitable for any particular purpose for which the brush isconstructed.

A brush of this type is particularly adapted for use in polishing smoothsurfaces, as the bodies of automobiles, articles of furniture and thelike, and in such cases the brush material will be composed of soft bersor bristles which will not scratch the surfaces being polished.

As a means for securely fastening the brush material in the channels inthe bases, wires or rods 2| may be placed in the folds of the brushmaterial Which is doubled within the channels, the opposite ends of thebers or bristles being extended outwardly 'and projecting beyond themouths of the bases I3. While the cleats I'l will ordinarily be foundsufficient to hold the brush elements in place in the structure shown inFigs. 1 to 3, yet as an additional means for securing said element fromendwise movement, rings 22 may be secured to opposite sides of the rimI2, these rings being of a size in diameter to be located opposite theends of the channels containing the bases I3 and prevent said bases fromendwise movement.

In the structure shown in Fig. 4 the bases 23 of the brush elements areformed with lips 24 extending along opposite edges at the bottoms of thebases, the cleats 25 being formed to engage 55 The edges of thesetheouter sides of these lips and thereby force the bases 23 into tightengagement with the supporting surface of a brush body, as the peripheryof the rim I2 of the wheel, said cleats being preferably secured ashereinbefore described with respect to the cleats 'II.

In the structure shown in Fig. 6 the bases 26 of the brush elements areformed as hereinbefore described with the brush material secured in thebases as hereinbefore set out, but said bases, instead of being straightand extending across the rim I2 from side to side are formed to closelyfit the rim and extend therearound, as hereinbefore described, thebottoms of the bases being made to squarely fit the outer surface of therim. These bases may extend spirally around the rim and be caused tosnugly i'lt the rim in the winding operation, the opposite ends of thebases being secured to the body or rim in any suitable manner. As analternative construction the bases may be formed as rings with the endssecured together in any suitable manner as desired, and with thisconstruction clamping members 21, preferably of metal, are of a size tofit the grooves between the lips 28 and the straight sides of the bases26, these members being preferably round in cross section, and holders29 are secured tightly against opposite sides of the rim I2, as by meansof screws, as shown in Fig. 6, said holders securely fastening theseveral brush bases in place on the rim I2.

The bases of the brush elements may be formed in various ways to providemeans for securely fastening them in place and the shapes of the troughsand the sides creating those troughs may be variously formed and shapedwithout departing from the spirit and intent of the invention. In all ofthe forms herein described, as Well as others contemplated by me, andwhich will not constitute a radical departure from the structures hereindescribed, the appearance of the brush when embodied in the round type,will be substantially as shown in Fig. 1 of the drawing, whether thebrush elements extend laterally across the face of the wheel orcircumferentially thereabout.

I claim:

l. A brush comprising a body in the form of a wheel having seats on itsperipheral surface to receive brush elements, each of said brushelements comprising a channeled base having a bottom shaped to fit andrest squarely on one of said seats and having tapered flat sides,fastening means for tightly engaging the fiat sides of said bases toseat said bases tightly against said surface of the body to rigidly holdthem in place and brush material secured within and projecting from themouths of said channels, the sides of which are pinched together attheir ends to hold said material in place.

2. A brush comprising a body in the form of a Wheel having seats on itsperipheral surface to receive brush elements, each of said brushelements comprising a channeled base extending crosswise of theperiphery of the wheel and having a bottom shaped to fit and restsquarely on one of said seats and having tapered sides, fastening meansfor tightly engaging said sides to seat said base squarely against saidseat and thereby rigidly fasten said brush element in place and brushmaterial secured within and projecting from the mouth of said channel,the sides of which are pinched together at their ends to hold saidmaterial in place.

3. A brush comprising a body in the form of a wheel having flat seats onits peripheral surface to receive brush elements, each of said brushelements comprising a channeled base having a bottom shaped to fit andrest squarely against one of said seats and having tapered flat sides,said element extending crosswise of the periphery of said body, andcleats having tapered flat edges to fit the flat sides of said bases,means for forcing said cleats against the sides of the bases to forcethe latter into tight engagement with said seats on said peripheralsurface to rigidly supports said elements, and brush material securedwithin and projecting from the mouths of said channels, the sides ofwhich are pinched together at their ends to hold said material in place.

4. A brush comprising a body in the form of a wheel having seats on itsperipheral surface to receive brush elements, each of said brushelements comprising a channeled base having a botd tom to rest squarelyagainst one of said seats and having tapered sides terminating in lipsat the bottoms of said sides, cleats engaged with said lips between saidbases, means for drawing said cleats into tight engagement with saidlips and brush material secured within and projecting from the mouths ofsaid channels.

5. A brush comprising a body having a brush element supporting surfacehaving seats for brush elements, each of said brush elements comprisinga channeled base having a flat bottom to rest squarely against a seatand having tapered sides converging outwardly, cleats tightly engagingsaid elements above the bottoms thereof to force them against said seatsto rigidly hold them on said seats, said cleats when loose providinggrooves into which said bases maybe slid, brush material secured withinand projecting from the mouths of said channels, and a retaining ringseparately formed from said body and removably secured thereto with itsperipheral edge overlapping said channels whereby the brush elements maybe slid into place from one side of the base.

6. A brush comprising a body having brush element supporting surfaces,each of said brush elements comprising a channeled base having a bottomto fit and rest squarely against one of said supporting surfaces of thebody and having tapered sides terminating in lips at the bottoms of saidsides, cleats engaged with said lips be- 7. A brush comprising a bodyhaving seats on its peripheral surface to receive brush elements, eachof said brush elements comprising a channeled base having a bottom ttedto rest against said surface of the body and having tapered sides,fastening members to tightly engage the sides of said bases between themto force them tightly against said seats to rigidly support them,clamping membersr'secured against the sides of said body in tightengagement with said fastening members to firmly secure said bases inplace, and brush material secured within and projecting from the mouthsof said channels, the sides of which are pinched together at their endsto hold said material in place.

8. A brush comprising a body having seats to receive brush elements,each of said brush elements comprising a channeled base having a bottomto fit and rest against one of said seats and having tapered sidesconverging toward their outer edges, holding means having tapered sidestightly tting and engaging the tapered sides of said elements above thebottoms thereof to wedge and hold said brush elements in place, brushmaterial secured within and projecting from the mouths of said channels,and a retaining ring separately formed from said body and removablysecured thereto with its peripheral edge overlapping said channelswhereby the brush elements may be slid into place from one side of thebase.

9. A brush comprising a body having a surd face formed with seats toreceive brush elements, each of said brush elements comprising achanneled base having a bottom to t and rest square- 1y against a seaton said surface and having tapered sides converging towards their outeredges, holding means shaped to conform to said elements to provide openended grooves on said body into which said brush elements may be slidand serving to hold said brush elements against said seats, brushmaterial secured within and projecting from the mouths of said channels,the sides of which are pinched together at the ends of said elements tosecure said brush material, and a retaining ring separately formed fromsaid body and removably attached thereto with its peripheral edgeoverlapping said channels whereby the brush elements are held againstsliding movement outwardly.

10. A brush comprising a wheel having at its periphery seats to receivebrush elements, each of said brush elements comprising a channeled basehaving a bottom to fit and rest squarely against a seat on saidperiphery and having tapered sides converging outwardly, taperedfastening means shaped to conform to said elements to provide open endedgrooves into which said brush elements may be slid and serving to holdsaid brush elements against said seats, means for securing saidfastening means in place above the bottoms of said elements to hold themagainst said seats on said body, brush material secured within andprojecting from the mouths of saidchannels, the sides of which arepinched together at their ends to hold said brush material, and aretaining ring separately formed from said body and removably attachedthereto with its peripheral edge overlapping said channels whereby thebrush elements are held against sliding movement outwardly.

11. A brush comprising a body in the form of a wheel having a peripheralsurface formed with seats to receive brush elements, each of said brushelements comprising a channeled base having a bottom to t and restsquarely against a seat and having tapered sides converging outwardly,tapered cleats shaped to conform to said elements to provide open endedgrooves in said body into which said brush elements may be slid, meansfor securing said cleats to retain said brush elements against saidseats, brush material secured within and projecting from the mouths ofsaid channels, the sides of which are pinched together at their ends tohold said brush material, and a retaining ring separately formed fromsaid body and removably attached thereto with its peripheral edgeoverlapping said channels whereby the brush elements are held againstsliding movement outwardly.

HENRY CAVE.

